Carrier profile · USDOT 280543 · Updated Jul 3, 2026

Capitol Building Supply Inc

DBA OHIO VALLEY DRYWALL SUPPLY COMMONWEALTH BLDG MATERIALS STEVEN KEMPF BLDG MATERIALS NEW ENGLAND GYPSUM SUPPLY TROWEL TRAD

400 power unitsavg 5.5 yrNational · 16 statesMANASSAS PARK, VA94/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORY
Verified linkscbsi.netFMCSA SAFER

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 13.2%24-mo cumulative
050%nat'l 22.26%
Driver OOS 0.4%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 159 vehicle and 246 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

15.4% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 1.7 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

242 inspections in the charted months · busiest month Jul '25 · 17

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Thin coverage
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.3 / unit·yr
thin signalabundant signal
Few roadside inspections for a 400-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
Registered power units
400
Inspections · 24 mo
246
Annualized
≈123 / yr
Coverage
≈0.3 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

18%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
3%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
44%
Vehicle Maintenance
Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving94 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance46 · 4 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving20 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance18 · 16 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance13 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance8 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance6 · 0 OOS
  • 393.78 Windshield wipersVehicle Maintenance5 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance5 · 2 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance5 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 348 inspections — a clean logging history.

Crash history· 44 total · 6 in 24 mo

44
Total crashes
6
In last 24 mo
0
Fatal
19
Injury
YearCrashesFatalInjuryTow
20261001
20253003
20244024
20233013
20223012
20211001
20201011
20192002
20183013
20163023
20151011
20141011
20123013
20114023
20103013
20082012
20051011
20041010
20031011
19991001
19971001
19961011
DateStateFatalitiesInjuriesTow-away
May 6, 2026MD00Yes
Oct 27, 2025VA00Yes
Oct 10, 2025PA00Yes
Mar 6, 2025VA00Yes
Sep 11, 2024MD00Yes
Aug 12, 2024MD00Yes
Jul 30, 2024MD01Yes
Jun 14, 2024MD01Yes
Sep 4, 2023VA00Yes
May 24, 2023NJ01Yes
Feb 3, 2023VA00Yes
Jun 29, 2022DC03No
Mar 16, 2022MD00Yes
Jan 4, 2022MD00Yes
Jul 13, 2021MD00Yes
Jan 25, 2020MD02Yes
Sep 5, 2019DE00Yes
Mar 4, 2019MD00Yes
Oct 25, 2018MD01Yes
Oct 25, 2018MD00Yes
Jul 12, 2018VA00Yes
Sep 17, 2016MD01Yes
Aug 9, 2016MD00Yes
Jan 6, 2016VA01Yes
Nov 9, 2015MD01Yes